GENUS 33. 



MINT FAMILY. 



4. Koellia verticillata (Michx.) Kuntze. Torrey's Mountain-Mint. Fig. 



Brachystemon verticillatutn Michx. Fl. Bor. Arfl. 2 : 



6. pi. 31. 1803. 



P. Torreyi Benth. Lab. Gen. & Sp. 329. 1834. 

 Koellia verticillata Kuntze, Rev. Gen. PI. 520. 1891. 



Puberulent, glabrate or pubescent ; stem slender, 

 i-2i high. Leaves lanceolate, oblong-lanceolate 

 or linear-lanceolate (rarely ovate-lanceolate), 

 short-petioled or sessile, serrulate or entire, acute 

 or acuminate at the apex, rounded or narrowed 

 at the base, i'-3' long, 3"-io" wide, the upper- 

 most sometimes canescent; flower-clusters dense, 

 canescent, $"-6" broad, terminal, corymbose and 

 commonly also in some of the upper axils; bracts 

 appressed, lanceolate, acuminate, ciliate, equalling 

 or longer than the clusters ; calyx canescent, its 

 teeth subulate or lance-subulate, ciliate, 2-3 times 

 as long as wide, one-fourth to one-third as long 

 as the tube; corolla pubescent, its tube rather ex- 

 ceeding the calyx. 



In dry fields and thickets, Vermont to Virginia, 

 west to Missouri. July-Sept. 



5. Koellia clinopodioides (T. & G.) Kuntze. 

 Basil Mountain-Mint. Fig. 3664. 



Pycnanthemum clinopodioides T. & G. ; A. Gray, Am. 



Journ. Sci. 42: 45. 1842. 

 Koellia clinopodioides Kuntze, Rev. Gen. PI. 520. 1891. 



Pubescent or puberulent ; stem slender, i-2| high. 

 Leaves lanceolate or oblong-lanceolate, rather thin, 

 short-petioled, sharply serrate, or the upper entire, 

 ii'-3' long, 5"-i2" wide, none of them canescent; 

 flower-clusters loose, terminal and axillary, about i' 

 broad ; bracts linear-acuminate or subulate-tipped, 

 not exceeding the clusters, some or all of them 

 spreading; calyx finely canescent or glabrate, its 

 teeth subulate, sometimes with a few long hairs, 

 slightly unequal, about one-third the length of the 

 tube; corolla-tube longer than the calyx. 



In dry soil, Connecticut to Pennsylvania, Virginia and 

 Tennessee. Ascends to 5000 ft. in Virginia. Aug.-Sept. 



6. Koellia hyssopifolia (Benth.) Britton. Hyssop Mountain-Mint. Fig. 3665. 



P. hyssopifolium Benth. Lab. Gen. & Sp. 329. 1834. 

 Pycnanthemum aristatum var. hyssopifolium A. Gray, 



Syn. Fl. 2: Part i, 354. 1878. 

 K. hyssopifolia Britton, Mem. 1 orr. Club 5 : 279. 1894. 



Puberulent or glabrate ; stem slender, stiff, i-3 

 high. Leaves oblong, linear-oblong, or lanceolate- 

 oblong, short-petioled, or the upper sessile, obtuse 

 or subacute at the apex, narrowed at the base, 

 entire or denticulate, i'-ii' long, 2"-6" wide, 

 glabrous or minutely canescent; flower-clusters 

 dense, minutely canescent, not at all villous, ter- 

 minal, and usually also in the upper axils, often 

 i' broad ; bracts linear-oblong, narrowed at each 

 end, terminated by an awn almost as long as the 

 body ; calyx cylindraceous, glabrous or very nearly 

 so, prominently nerved, its teeth bristle-pointed, 

 slightly widened below, nearly as long as the 

 tube ; corolla-tube not longer than calyx. 



In dry soil, Virginia to Florida. June-Aug. 



